安装(下载&；tar zxf)Apache Flink 1.11.1并运行： ./bin/flink run examples/streaming/WordCount.jar大于等于5分钟后显示在友好消息上。提交尝试：

   Caused by: org.apache.flink.runtime.jobmanager.scheduler.NoResourceAvailableException: Could not allocate the required slot within slot request timeout. Please make sure that the cluster has enough resources.
    at org.apache.flink.runtime.scheduler.DefaultScheduler.maybeWrapWithNoResourceAvailableException(DefaultScheduler.java:441)
    ... 45 more
Caused by: java.util.concurrent.CompletionException: java.util.concurrent.TimeoutException
    at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
    at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
    at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:607)
    at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:591)

这是Flink默认配置。

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    1
Core(s) per socket:    1

free-g

              total        used        free      shared  buff/cache   available
Mem:             62           1          23           3          37          57
Swap:             7           0           7

这里发生了什么事有什么建议吗？

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解决方案

此问题已在Flink 1.11.3中修复。 Refer this link。